Apparatus for mounting filaments.



L. BORZYCHOWSKI.

APPARATUS FOR MOUNTING FILAMENTS.

APPLICATION FILED JUNE'3, 1912.

1,143,493., Patented June 15, 1915.

Witnesses: InvsntU'r" {M f/%% Len Borzchcavvski.

. .lIIY W 1 w! a j i Hisffttornex 'LEO BO BZYOHOWBKI, OF BERLIN, GERMANY, -ASSIG-NOB TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

APPARATUS FOR MOUNTING FILAME'NTS.

Specification of Letters Patent.

Patented June 15, 1915.

Animation filed limes, 1912. Serial No. 701,409.

To all whom it may concem:

Be it known that I, Lao Bonzrcnowsnr, a subject of the Emperor of Germany, residing at Berlin, Germany, have made certain new and useful Improvements in Apparatus for Mounting Filaments, of which the following is a specification.

My invention relates to apparatus for use in winding filaments on supports in incandescent lamps and its object is to facilitate this operation and to make it possible to carry it out with better andimore uniform results. v a v Variousother advantages which may be realized by its employment will hereinafter a ear.

The invention is very useful in connection with lamp filaments,"-such as tungsten and tantalum filaments which at their operating temperatures become so soft as torequire efiicient support additional to that afiorded .by their current'supply conductors, and it is especially desirable for ductile filaments of this character. 4

When a great length of filament is employed, it has been found desirable to arrange it in the lamp in a continuous piece having a more or less complex form, the filament being given such form as an incident of the operation of placing it on its supporting means.

The filament supporting frames of incandescent electric lamps are generallyfurnished with supports arranged in two ormore parallel planes and on a common supporting stem, either all'of the supports or only those in one of the planes being formed of elastic material. The operation of stretching the. illuminating body or filament directly over elastic supports is one that is 4 attended with difiiculty, since the supports able auxiliary supports are then withdrawn from' the looped portions of the filament,

' bifurcated lever n, thereby a sleeve and finally having been drawn back are so moved with relation to the filament supportrent through the filament, the auxiliary sup-' ports being at the same time somewhat moved in an axial direction in order to stretch the filament.

This invention is illustrated in Figures 1, 2 and 3 of the drawings herewith. Fig. 1 shows the machine in position for winding the filament; Fig. 2 shows the machine with the auxiliary supports withdrawn from the filament supports; Fig. 3 shows the machine with the parts in position to permit removal of the lamp frame and filament.

By reference toFig. 1 it will be seen that the auxiliary supports 6 are hinged to the holder head a. Upon a support 6 is seated the lamp base with a filament supporting frame, and it is held in correct position with relation to the auxiliary supporting ring by means of an adjustable sto f. The filament is then attached to one of the current, conductors g, is carried from there overone of the reinforcing auxiliary supports 6 simultaneously with the support d r adj acent to it, then over one of the supports and so on and finally fastened by its end to the second current conductor g of the'filament supporting frame. The current conducting wiresv h which pass out from the lamp base may be rovided with current through the termina s it. After the release of the lever .r a spindle o is lifted by pressing down a lever l with the cooperation of the tension rod m jointed thereto and the e which is movably fastened in the holder head a, is shifted. The ends of hell crank levers p which carry the auxiliary sup orts b are engaged in the sleeve By a justing the bell crank levers p the auxiliary supports may be moved inward to the-"position shown in Fig. 2. The lever a is now pressed down so that by the cooperation of the rod 8 the holder t is elevated. Thereby the lever '1 comes to rest, being held for a short time in itslo'wer position against a fixed stop u, so that during the lifting of the holder head a the auxiliary holders remain drawn back. moved out of the range of the filament supporting frame by pressing down the lever r, as shown in Fig. 3, so that the mounted filament and its supporting frame may be removed from the machine.

The apparatus described is arranged to rotate upon a base V in order to permit the bringing of the supporting frame into suitable position for putting on the different sections of the filament. The current conductorsare preferablv carried from the termiuals is to springs which slide upon circular devices provided on the base W.

What I claim as new and desire to secure by Letters Patent of the United-States is:-

1. In an apparatus for mounting filaments, the combination of means for positioning a filament support, a holder head, auxiliary filament supports hinged on said head to move into and out of position to receive the strain of winding the filament on its support, means for at will moving said auxiliary supports abouttheir pivots while said head is stationary and means for causing a bodily movement of said holder head and said auxiliary supports with respect to said positioning means.

2. In an apparatus for mounting filaments upon yielding supports, the combination of a holder head, means for positioning yielding filament supports, auxiliary filament supports movably mounted on said head to move into and out of position to relieve the yielding supports from the strains produced by winding the filament over said supports, means for moving said auxiliary supports relatively to said head, means for locking said head and said auxiliary supports, and means for moving them together away from said filament supports.

3. In a machine for use in the manufacture of incandescent lamps, the combination of a base, a frame rotatably mounted on said base, meanson said frame for positioning filament supports, a holder head slidably mounted on said frame, auxiliary filament supports movablymounted on said head in position to receive the strain produced by winding the filament over said filament supports, means for moving said auxiliary supports out of said position independently of said head, and means for sliding said head to move said auxiliary supports bodily away from said filament supports.

' 4. In an apparatus for use in the manufacture of incandescent lamps, the combination of means for holding in position yielding supports for carrying the filament, temporary holding means for receiving-the fila- The auxiliary holder ring is then' ment While being mounted, and means for disengaging the temporary means from the filament after mounting to transfer the filament to said yielding supports.

5. In an apparatus for mounting filaments upon yielding supports, a combination of means for supporting and positioning a frame containing said supports, a holder head adjacent said yielding supports, auxiliary filament supports movably mounted on said head in position to receive said filament, and means for at will moving said auxiliary supports in and out of substantial proximity with the yielding supports.

6. In an apparatus for mounting filaments upon supports, the combination of means for positioning a set of yielding filament supports, auxiliary supports having a rigidity adapted to withstand the strains due to the application of a filament and spaced to substantially register with the yielding supports, and means for at will disengaging the rigid supports from the mounted filament While maintaining the filament in place.

'71 In an apparatus for Winding a continuous metal filament, the combination of means for positioning a lamp frame having a set of yielding supports, aset of outwardly extending resisting supports and means for radially moving said resisting supports into and out of substantial registry with the ends of said yielding supports, transverse to the axis of the lamp frame.

8. In an apparatus for mounting fila-- ments, the combination of means for positioning a lamp frame having one or more transverse supports, a holder head, one or more rigid supports mounted on said head, means for moving said head relative to the positioning means and means for independently moving said rigid support or supports relative to the holder head into and out of registry with said yielding support.

9. In a machine for use in the manufacture of incandescent lamps, the combination of means for positioning yielding supports for the filament, and auxiliary means for engaging said yielding supports near their end during the application of the filament.

10. In a machine for use in the manufacture of incandescent lamps, the combination of means for holding hooked supports for carrying the filament, rigid auxiliary supports for engaging said hooked support-s near their hooked ends during the application of a filament, and means for at will removing said rigid auxiliary supports.

In witness whereof, I have hereunto set my hand this 14th day of May 1912.

LEO BORZYCHOWSKI.

Witnesses:

HENRY HASPER WOLDEMAR HAUPT. 

